Details of the Drug Combination

General Information of Drug Combination (ID: DCPXHXW)

• Drug Combination Name: Doxapram + Theophylline
• Indication: Weaning Failure; Status: Phase 1 [1]
• Component Drugs:
  Doxapram (DMCYANK): Small molecular drug
  Theophylline (DMRJFN9): Small molecular drug

Molecular Interaction Atlas of This Drug Combination

Indication(s) of Doxapram

Disease Entry	ICD 11	Status	REF
Respiratory disease	CB40	Approved	[2]

Doxapram Interacts with 1 DTT Molecule(s)

DTT Name	DTT ID	UniProt ID	Mode of Action	REF
Peripheral carotid chemoreceptor (PCC)	TT6EYVN	NOUNIPROTAC	Stimulator	[5]

Doxapram Interacts with 2 DME Molecule(s)

DME Name	DME ID	UniProt ID	Mode of Action	REF
Cytochrome P450 3A4 (CYP3A4)	DE4LYSA	CP3A4_HUMAN	Metabolism	[6]
Cytochrome P450 3A5 (CYP3A5)	DEIBDNY	CP3A5_HUMAN	Metabolism	[6]

Doxapram Interacts with 1 DOT Molecule(s)

DOT Name	DOT ID	UniProt ID	Mode of Action	REF
Prolactin (PRL)	OTWFQGX7	PRL_HUMAN	Increases Expression	[7]

Indication(s) of Theophylline

Disease Entry	ICD 11	Status	REF
Bronchitis	CA20	Approved	[3]
Chronic obstructive pulmonary disease	CA22	Approved	[4]
Lung cancer	2C25.0	Approved	[3]
Non-small-cell lung cancer	2C25.Y	Approved	[3]
Pulmonary disease	1B10-1F85	Approved	[3]
Pulmonary emphysema	CA21.Z	Approved	[3]
Severe asthma	CA23	Approved	[3]
Asthma	CA23	Investigative	[3]

Theophylline Interacts with 1 DTT Molecule(s)

DTT Name	DTT ID	UniProt ID	Mode of Action	REF
Adenosine receptor (ADOR)	TTSLI08	NOUNIPROTAC	Antagonist	[8]

Theophylline Interacts with 1 DTP Molecule(s)

DTP Name	DTP ID	UniProt ID	Mode of Action	REF
Organic anion transporter 2 (SLC22A7)	DT0OC1Q	S22A7_HUMAN	Substrate	[9]

Theophylline Interacts with 6 DME Molecule(s)

DME Name	DME ID	UniProt ID	Mode of Action	REF
Cytochrome P450 3A4 (CYP3A4)	DE4LYSA	CP3A4_HUMAN	Metabolism	[10]
Cytochrome P450 1A2 (CYP1A2)	DEJGDUW	CP1A2_HUMAN	Metabolism	[11]
Cytochrome P450 1A1 (CYP1A1)	DE6OQ3W	CP1A1_HUMAN	Metabolism	[12]
Cytochrome P450 2D6 (CYP2D6)	DECB0K3	CP2D6_HUMAN	Metabolism	[10]
Cytochrome P450 2E1 (CYP2E1)	DEVDYN7	CP2E1_HUMAN	Metabolism	[13]
Cytochrome P450 1B1 (CYP1B1)	DE9QHP6	CP1B1_HUMAN	Metabolism	[14]

Theophylline Interacts with 4 DOT Molecule(s)

DOT Name	DOT ID	UniProt ID	Mode of Action	REF
Cytochrome P450 2E1 (CYP2E1)	OTHQ17JG	CP2E1_HUMAN	Increases ADR	[15]
Renin (REN)	OT52GZR2	RENI_HUMAN	Increases ADR	[15]
Alanine aminotransferase 1 (GPT)	OTOXOA0Q	ALAT1_HUMAN	Increases ADR	[15]
Cyclic GMP-AMP phosphodiesterase SMPDL3A (SMPDL3A)	OTQDYH8E	ASM3A_HUMAN	Increases ADR	[15]

References

• [1] ClinicalTrials.gov (NCT03894189) The Effect of Doxapram Versus Theophylline on Diaphragmatic Function
• [2] URL: http://www.guidetopharmacology.org Nucleic Acids Res. 2015 Oct 12. pii: gkv1037. The IUPHAR/BPS Guide to PHARMACOLOGY in 2016: towards curated quantitative interactions between 1300 protein targets and 6000 ligands. (Ligand id: 7169).
• [3] Theophylline FDA Label
• [4] URL: http://www.guidetopharmacology.org Nucleic Acids Res. 2015 Oct 12. pii: gkv1037. The IUPHAR/BPS Guide to PHARMACOLOGY in 2016: towards curated quantitative interactions between 1300 protein targets and 6000 ligands. (Ligand id: 413).
• [5] Ovalbumin sensitization alters the ventilatory responses to chemical challenges in guinea pigs. J Appl Physiol (1985). 2005 Nov;99(5):1782-8.
• [6] Population pharmacokinetics of doxapram in low-birth-weight Japanese infants with apnea. Eur J Pediatr. 2015 Apr;174(4):509-18.
• [7] Doxapram-induced panic attacks and cortisol elevation. Psychiatry Res. 2005 Feb 28;133(2-3):253-61. doi: 10.1016/j.psychres.2004.10.010.
• [8] Emerging adenosine receptor agonists. Expert Opin Emerg Drugs. 2007 Sep;12(3):479-92.
• [9] Possible involvement of organic anion transporter 2 on the interaction of theophylline with erythromycin in the human liver. Drug Metab Dispos. 2005 May;33(5):619-22.
• [10] Characterization of human cytochromes P450 involved in theophylline 8-hydroxylation. Biochem Pharmacol. 1995 Jul 17;50(2):205-11.
• [11] Association between common CYP1A2 polymorphisms and theophylline metabolism in non-smoking healthy volunteers. Basic Clin Pharmacol Toxicol. 2013 Apr;112(4):257-63.
• [12] Specificity of substrate and inhibitor probes for human cytochromes P450 1A1 and 1A2. J Pharmacol Exp Ther. 1993 Apr;265(1):401-7.
• [13] Construction and assessment of models of CYP2E1: predictions of metabolism from docking, molecular dynamics, and density functional theoretical calculations. J Med Chem. 2003 Apr 24;46(9):1645-60.
• [14] Oxidation of xenobiotics by recombinant human cytochrome P450 1B1. Drug Metab Dispos. 1997 May;25(5):617-22.
• [15] ADReCS-Target: target profiles for aiding drug safety research and application. Nucleic Acids Res. 2018 Jan 4;46(D1):D911-D917. doi: 10.1093/nar/gkx899.